Georgetown Railroad’s Dump Train
One of the more creative ideas is the Dump Train, invented in 1986 by Ned Snead, co-owner of the Georgetown Railroad.
The aggregate cars have a conveyor along the bottom of each car that brings material to another conveyor on the boom. The boom swings out up to 35′ to drop the material where desired.
There’s a short video on YouTube showing this train in operation. Lastly, a good article from the Victoria, TX newspaper that talks about the manufacturing of these trainsets, done by Safety Steel Corp. in Victoria.